diff options
| -rw-r--r-- | net/ieee80211/ieee80211_crypt_tkip.c | 19 | ||||
| -rw-r--r-- | net/ieee80211/ieee80211_crypt_wep.c | 3 |
2 files changed, 19 insertions, 3 deletions
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c index 259572d..4200ec5 100644 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -93,7 +93,7 @@ static void *ieee80211_tkip_init(int key_idx) if (IS_ERR(priv->tx_tfm_arc4)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API arc4\n"); - priv->tfm_arc4 = NULL; + priv->tx_tfm_arc4 = NULL; goto fail; } @@ -102,6 +102,7 @@ static void *ieee80211_tkip_init(int key_idx) if (IS_ERR(priv->tx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API michael_mic\n"); + priv->tx_tfm_michael = NULL; goto fail; } @@ -110,6 +111,7 @@ static void *ieee80211_tkip_init(int key_idx) if (IS_ERR(priv->rx_tfm_arc4)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API arc4\n"); + priv->rx_tfm_arc4 = NULL; goto fail; } @@ -118,7 +120,7 @@ static void *ieee80211_tkip_init(int key_idx) if (IS_ERR(priv->rx_tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API michael_mic\n"); - priv->tfm_michael = NULL; + priv->rx_tfm_michael = NULL; goto fail; } @@ -392,6 +394,19 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4); } +/* + * deal with seq counter wrapping correctly. + * refer to timer_after() for jiffies wrapping handling + */ +static inline int tkip_replay_check(u32 iv32_n, u16 iv16_n, + u32 iv32_o, u16 iv16_o) +{ + if ((s32)iv32_n - (s32)iv32_o < 0 || + (iv32_n == iv32_o && iv16_n <= iv16_o)) + return 1; + return 0; +} + static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_tkip_data *tkey = priv; diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c index 9eeec13..1b2efff 100644 --- a/net/ieee80211/ieee80211_crypt_wep.c +++ b/net/ieee80211/ieee80211_crypt_wep.c @@ -50,7 +50,7 @@ static void *prism2_wep_init(int keyidx) if (IS_ERR(priv->tx_tfm)) { printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate " "crypto API arc4\n"); - priv->tfm = NULL; + priv->tx_tfm = NULL; goto fail; } @@ -58,6 +58,7 @@ static void *prism2_wep_init(int keyidx) if (IS_ERR(priv->rx_tfm)) { printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate " "crypto API arc4\n"); + priv->rx_tfm = NULL; goto fail; } /* start WEP IV from a random value */ |